The regression of lung function change on the initial lung function level is biased when the initial level is measured with random error. Several methods have been ...

Background: Self-report questionnaires play an important role as outcome measures in shoulder research. Having an estimate of the measurement error of these ...

This is a preview. Log in through your library . Abstract From the perspective of teachers and test makers at the district or state level, current methods for obtaining reliability indices for mastery ...

The study was conducted at the rehabilitation clinic "RehaClinic" (locations Bad Zurzach and Braunwald, Switzerland), which is attended by severely disabled patients suffering from persistent ...